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poprawiono usuwanie niepoprawnych dzialek

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This commit is contained in:
Kacper Donat 2019-11-17 16:41:35 +01:00
parent 841bdb9ee7
commit cb2a6b16f3
2 changed files with 6 additions and 5 deletions
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6
Assets/Scripts/AnnotationPass/CityFieldsPass.cs
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@ -132,11 +132,7 @@ namespace Assets.AnnotationPass
} }
// remove outside field // remove outside field
city.Fields.RemoveAll(field => city.Fields.RemoveAll(field => !PointUtils.IsClockwise(field.Boundary));
{
var points = field.Boundary.Take(3).ToArray();
return !PointUtils.IsClockwise(points[0], points[1], points[2]);
});
} }
public void Annotate(Map map) public void Annotate(Map map)

5
Assets/Scripts/Common/PointUtils.cs
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@ -60,6 +60,11 @@ namespace Assets.Common
return xa * yb - xb * ya < 0; return xa * yb - xb * ya < 0;
} }
public static bool IsClockwise(IEnumerable<Point> points)
{
return points.Zip(points.RotateRight(), (a, b) => (b.x - a.x) * (b.y + a.y)).Aggregate((a, b) => a + b) < 0;
}
public static bool IsPointInside(Point point, Point[] polygon) public static bool IsPointInside(Point point, Point[] polygon)
{ {
var j = polygon.Length - 1; var j = polygon.Length - 1;